Fuel efficiency display device for fuel cell vehicle, and fuel efficiency displaying method for fuel cell vehicle
US7966121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Dec 9, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/944
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This fuel efficiency display device for a fuel cell vehicle includes: a first interval vehicle efficiency obtaining device which obtains a first interval vehicle efficiency being a fraction of a generated traveling energy with respect to a consumed fuel amount in a predetermined first time-interval; a second interval traveling energy obtaining device which obtains a second interval traveling energy being a traveling energy generated in a predetermined second time-interval which is shorter than the first time-interval; and a second interval fuel efficiency obtaining device which obtains a second interval fuel efficiency being a fuel efficiency in the second time-interval, based on at least the first interval vehicle efficiency and the second interval traveling energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.